Patents Assigned to International Applied Sciences, Inc.
  • Hydrophilic microporous membrane
    Patent number: 5019262
    Abstract: A membrane that is prepared in an oil in water system and comprises a hydrophilic polymer film having controlled porosity. Such membranes are particularly well suited as filters for cigarettes and like products.
    Type: Grant
    Filed: October 6, 1989
    Date of Patent: May 28, 1991
    Assignee: International Applied Sciences, Inc.
    Inventor: Ying Wang